Home / 19,141.18-28,721.49-8,609.07

Finding the Fourth Proportional to 19,141.18, 28,721.49 and 8,609.07

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Solution

The fourth proportional to 19,141.18, 28,721.49 and 8,609.07 is: 12,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.18 : 28,721.49 = 8,609.07 : x
  2. Step 2: Convert to fraction form
    19,141.18/28,721.49 = 8,609.07/x
  3. Step 3: Cross multiply
    19,141.18x = 28,721.49 × 8,609.07
  4. Step 4: Simplify right side
    19,141.18x = 247,265,231.78
  5. Step 5: Solve for x
    x = 247,265,231.78/19,141.18
  6. Step 6: Final answer
    x = 12,917.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.